Starrett DB2 Hole Saw Cowl. Simply insert the arbor shank through the eyelet at the base of the bowl, press the rim of the bowl against the surface of the material being cut and begin sawing. The rim of the bowl then forms a seal against the material being cut, collecting the dust & dirt inside the bowl. Advantages:
- Very simple to use - no extra parts or accessories required
- Bowl flexes with minimal pressure as the hole is cut
- Huge potential for time saving - there is no need to tape up at-risk areas prior to sawing or to clean up after sawing
- Suitable for Starrett holesaws (SH, DH and MPH models) up to and including diameter 121mm (4 3/4")